Multi-code OBD2 diagnosis
Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.
Summary
- Overall severity
- Medium
- Can I keep driving?
- Yes, no immediate risk
- Estimated cost
- $80 to $350
- Codes analyzed
- 1 of 1
The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.
Order of inspection
P1133 Air Fuel Ratio Sensor Circuit Slow Response (Toyota, Bank 1 Sensor 1) Medium
On Toyota and Lexus, the P1133 code points to a slow response in the air fuel ratio sensor circuit (bank 1 sensor 1). Fuel use goes up and the mixture is no longer controlled precisely. On other brands the number means something else.